不属于自我控制菌斑方法的是A．牙刷刷牙B．牙线法C．漱口药含漱法D．洁治法E．牙签清洁法

A．the huge number of reporters who have exhausted themselves on the job

B．the high turnover of reporters due to the stress and strain of the job

C．the high death rate of reporters working on the job

D．the heavy pressure on the employers to reduce cost

A．Y

B．N

C．NG

Insurance premiums do not become too high because ______.

A. not many people insure themselves B. premiums depend on the risk of loss

C. insurers have to be more competitive D. insurance companies can never lose money

A、Because of high taxes (taxation without representation)

B、Because the British army stayed in their houses (boarding, quartering)

C、because they want to be host of themselves

D、Because they didn't have self-government

The main feeling these children have when they are at home by themselves is______.

A．tiredness

B．fear

C．loneliness

D．freedom

A．knew the jobs and themselves well

B．had a good curriculum in high school

C．happened to have the "one perfect job"

D．could get used to their working lives

According to the passage, we can know that______.

A．the Finnish society has very high moral level

B．there are many loopholes in customs in Finland

C．in Finland, most taxi drivers will not charge you anything

D．everyone in Finland is like a gentleman, for they have faith in themselves

Why did the cliff dwellers of the American Southwest build their homes so high up？

A．To protect themselves from enemies.

B．To have a good view of the valley below.

C．To get more sunshine and fresh air.

D．To escape from the urban noise.